The new ETH-300 series reflect angle accuracy and have an easy to see Pentax red side for safety and recognition.There are 4 models in the range providing a choice of 2” (0.001G), 5” (0.001G), 10” (0.002G) or 20” (0.005G) accuracy.

Key Features include:

• Easy to read-display
• Zero set and reverse angle display
• Powered by Alkaline batteries

Applications

• Setting out right angles and checking plumb
• Alignment measurements
• Anchor bolt layout
• 90° layout

Easy to read-display
A 16 characters x 2 line liquid crystal display (LCD) is incorporated on both sides of the instrument. Both vertical and horizontal angles are displayed in degrees or gon.

Easy key operation
A row of soft keys allows simple and fast operation

Automatic power-off function
Automatic power-off prevents unnecessary battery drainage. The remaining battery capacity is indicated on the display.

Easy to use
Lightweight and compact. The basic instrument weighs only 4.6 kg or 10 lbs. 2 oz.(including battery)

Angle measurement and Angle control

• Clockwise and counter-clockwise angle measurement
• Conversion of the vertical angle to a percentage grade
• Zero setting of the horizontal angle at any position
• Horizontal angle ‘Hold’ key function

Technical Specifications:

ETH-330 Series	ETH-335	ETH-332
Telescope
Magnification	30x	30x
Objective Aperture	45 mm	45 mm
Resolving Power	3”	3”
Field of View	1°30’	1°30’
Minimum Focus Distance	1.35 m	1.35 m
Stadia ratio	100	100
Stadia constant	0	0
Focusing	2 Speed	2 Speed
Angle Measurement
Type	Incremental	Incremental
Reading System
Vertical	Single	Single
Horizontal	Dual	Dual
Minimum Display	5”	2”
Accuracy (DIN18723)	5”	2”
Unit of Angle	360°/ 400 g / 6400 MIL	360°/ 400 g / 6400 MIL
Display
Type	dot matrix LCD	dot matrix LCD
Display Panel	2 sides	2 sides
Key Panel	English	English
Vertical axis	single axis	single axis
Compensator	No	No
Water Resistance	IPX 4	IPX 4
Sensitivity of Vials
Plate Vial	40”/ 2 mm	40”/ 2 mm
Circular Vial	8’ / 2 mm	8’ / 2 mm
Warning Buzzer	Yes	Yes
Optical Plummet Telesc.
Magnification	3x	3x
Focus Range	0.5 m ~ ?	0.5 m ~ ?
Power Source
Type	4 x AA Dry Battery	4 x AA Dry Battery
Operation Time	Alkaline 30 hrs./ (NiMH 15 hrs)	Alkaline 30 hrs./ (NiMH 15 hrs)
Ambient Temperature	-20°C - + 50°C	-20°C - + 50°C
Size and Weight
Body	W 168 x H 330 x L 158 mm	W 168 x H 330 x L 158 mm
Weight	4.6 kg / 10 lbs. 2 oz	4.6 kg / 10 lbs. 2 oz
Detachable tribrach	Yes	Yes